The ultimate sock has been updated to provide the true expedition experience designed for mountaineering footwear and extended cold weather. Two layers of Polartec® Power Stretch® fabric sandwiching PrimaLoft® Footwear insulation in a left and right foot anatomical shape put these socks on the cutting edge of warmth technology. Tested above 8,000 meters these socks are as good as it gets.

QUOTE / COMMENT

"Out of the box it was clear that these were going to be comfortable with some heavy padding in all the places you would expect. As suspected, they were great to wear and became a must have piece of kit for chilly days in the alps this summer. So much so that I should also add that they survived multiple washes..." James Thacker Mountaineering